rocksdb/docs/README.md

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## User Documentation for rocksdb.org
This directory will contain the user and feature documentation for RocksDB. The documentation will be hosted on GitHub pages.
### Contributing
See [CONTRIBUTING.md](./CONTRIBUTING.md) for details on how to add or modify content.
### Run the Site Locally
The requirements for running a GitHub pages site locally is described in [GitHub help](https://help.github.com/articles/setting-up-your-github-pages-site-locally-with-jekyll/#requirements). The steps below summarize these steps.
> If you have run the site before, you can start with step 1 and then move on to step 5.
1. Ensure that you are in the `/docs` directory in your local RocksDB clone (i.e., the same directory where this `README.md` exists). The below RubyGems commands, etc. must be run from there.
1. Make sure you have Ruby and [RubyGems](https://rubygems.org/) installed.
> Ruby >= 2.2 is required for the gems. On the latest versions of Mac OS X, Ruby 2.0 is the
> default. Use `brew install ruby` (or your preferred upgrade mechanism) to install a newer
> version of Ruby for your Mac OS X system.
1. Make sure you have [Bundler](http://bundler.io/) installed.
```
# may require sudo
gem install bundler
```
1. Install the project's dependencies
```
# run this in the 'docs' directory
bundle install
```
> If you get an error when installing `nokogiri`, you may be running into the problem described
> in [this nokogiri issue](https://github.com/sparklemotion/nokogiri/issues/1483). You can
> either `brew uninstall xz` (and then `brew install xz` after the bundle is installed) or
> `xcode-select --install` (although this may not work if you have already installed command
> line tools).
1. Run Jekyll's server.
- On first runs or for structural changes to the documentation (e.g., new sidebar menu item), do a full build.
```
bundle exec jekyll serve
```
- For content changes only, you can use `--incremental` for faster builds.
```
bundle exec jekyll serve --incremental
```
> We use `bundle exec` instead of running straight `jekyll` because `bundle exec` will always use the version of Jekyll from our `Gemfile`. Just running `jekyll` will use the system version and may not necessarily be compatible.
- To run using an actual IP address, you can use `--host=0.0.0.0`
```
bundle exec jekyll serve --host=0.0.0.0
```
This will allow you to use the IP address associated with your machine in the URL. That way you could share it with other people.
e.g., on a Mac, you can your IP address with something like `ifconfig | grep "inet " | grep -v 127.0.0.1`.
1. Either of commands in the previous step will serve up the site on your local device at http://127.0.0.1:4000/ or http://localhost:4000.
### Updating the Bundle
The site depends on Github Pages and the installed bundle is based on the `github-pages` gem.
Occasionally that gem might get updated with new or changed functionality. If that is the case,
you can run:
```
bundle update
```
to get the latest packages for the installation.